| #include <stdio.h> |
| #include <string.h> |
| #include <fcntl.h> |
| #include <errno.h> |
| |
| #ifndef _MSC_VER |
| #include <unistd.h> |
| #endif |
| |
| int main(int argc, char **argv) { |
| char data[10]; |
| int fd, size; |
| |
| if (argc != 2) { |
| fprintf(stderr, "Incorrect number of arguments, got %i\n", argc); |
| return 1; |
| } |
| fd = open(argv[1], O_RDONLY); |
| if (fd < 0) { |
| fprintf(stderr, "First argument is wrong.\n"); |
| return 1; |
| } |
| |
| size = read(fd, data, 8); |
| if (size < 0) { |
| fprintf(stderr, "Failed to read: %s\n", strerror(errno)); |
| return 1; |
| } |
| if (strncmp(data, "contents", 8) != 0) { |
| fprintf(stderr, "Contents don't match, got %s\n", data); |
| return 1; |
| } |
| return 0; |
| } |